drm/radeon: disable compute rings on cayman for now

Disable the additional compute rings on cayman
until their setup is fully implemented.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
1 file changed